648 SCIENCE PROGRESS 



commonly referred to Akadon " (ibid.) ; and " Two New 

 Muridce from South America " (Dec). Pocock also has a series 

 in the same publication " On the Hyoidean Apparatus of the 

 Lion (F. Leo) and Related Species of Felidce " (Aug.) ; " Some 

 Dental and Cranial Variations in the Scotch Wild Cat (Felis 

 sylvestris)" (Sept.), "On the Tooth-change, cranial characters 

 and classification of the Snow-Leopard or Ounce (Felis Uncia) " 

 (ibid.) ; and " The Structure of the Auditory Bulla in existing 

 species of Felidce " (Oct.). New forms are recorded by Blackler 

 in " On Two New Carnivores from Asia Minor " and " On Two 

 New Sub-species of Roedeer " (both in Ann. and Mag. Nat. 

 Hist. July 1 91 6). 



The Quarterly Journal of Microscopical Science, vol. lxii. 

 Pt. 4, 1 91 6, contains two papers. That of Edgeworth " On 

 the Development and Morphology of the Pharyngeal, Laryngeal, 

 and Hypobranchial Muscles of Mammals." This is a con- 

 tinuation of a paper in vol. lix. The various muscles in the 

 regions named are dealt with, and the author concludes with 

 a very useful list of the points in which Monotremes are more 

 primitive than Marsupials, and these in turn than the Eutheria. 

 Interestingly the pterygo-tympanicus retains more primitive 

 conditions in some Edentates than in Marsupials. That of 

 O'Donoghue " On the Corpora lutea and Interstitial Tissue of 

 the Ovary in the Marsupialia " includes a description of two 

 new varieties of corpus and a general review of that structure 

 in the Marsupials. Interstitial tissue, a tissue sui generis, 

 appears to be present in the Diprotodontia and absent in 

 Polyprotodontia. Martin has examined " Tooth Development 

 in Dasypus novemcunctatus " (Jour, of Morph. Sept. 191 6), and 

 gives the dental formula of the lower jaw as M. 1, P.M. 7, C. 1, 

 1 . 6 or 5 . He confirms Tomes as to the presence of an enamel 

 organ . 



Very well preserved casts even showing the position of 

 blood vessels enabled Moodie to write " On the Sinus Parana- 

 salis of Two Early Tertiary Mammals " (Jour. Morph. Dec. 

 191 6). He is led to believe that the organ of the sinus parana- 

 salis is to be found not in early mammals but in remote 

 ancestors . 



Experiments by Hopkins on " The Growth of the Body and 

 Organs of the Albino Rat as Affected by Feeding various Duct- 

 less Glands (Thyroid, Thymus, Hypophysis, and Pineal) " 



